Product Overview: The Allen-Bradley 1769-OW16
The Allen-Bradley 1769-OW16 is a 16-point discrete output module designed for the CompactLogix and MicroLogix 1500 controller families. This relay output module provides reliable switching for AC/DC loads up to 265 VAC and 125 VDC, making it ideal for upgrading older discrete output systems or expanding I/O capacity in existing setups. Each of the 16 normally open contacts supports up to 2.5A per point, with two individually isolated groups of eight outputs for flexible voltage configurations.
Technical Specifications Breakdown
Key specifications from the product description include:
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Number of Outputs: 16 (Normally Open, 8 per group)
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Operating Voltage: 5–265 VAC or 5–125 VDC
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Current per Point: 2.5 A maximum continuous; per module: 20 A maximum
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Bus Current Draw: 125 mA at 5.1 VDC, 100 mA at 24 VDC (from description), also listed as 205 mA at 5 VDC and 180 mA at 24 VDC in descriptive text
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Heat Dissipation: 2.83 W (specs) / 4.75 W (max from description)
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Operating Temperature: 0 to 60 °C
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Signal Delay: 10 ms on/off
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Isolation: 1836 VAC for 1 second (output to bus)
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Wiring: Solid 22–14 AWG or Stranded 22–16 AWG copper-90 wire
These parameters make the 1769-OW16 suitable for driving inductive loads, relays, solenoids, and contactors in industrial environments.
Industry Applications
The 1769-OW16 excels in applications requiring high-current switching and voltage isolation. Typical use cases include:
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Machine Control: Actuating motors, valves, and pneumatic systems in packaging or material handling equipment.
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Manufacturing Lines: Replacing older relay panels in automotive or food processing lines for improved reliability and reduced wiring.
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Building Automation: Controlling HVAC dampers, lighting contactors, or pumps in commercial facilities.
As part of a system upgrade, this module allows seamless integration with existing CompactLogix or MicroLogix platforms while offering higher current capacity than many solid-state alternatives.
Installation & Setup Guidance
Mount the 1769-OW16 on a DIN rail or panel in a suitable enclosure. Ensure proper spacing for heat dissipation (max 4.75 W). Connect the module to an adjacent Compact I/O module using the provided bus connectors, and lock the bus levers to secure the backplane connection. For MicroLogix 1500 systems, install the module after the base unit. Use copper wire rated for 90 °C (22–14 AWG solid or 22–16 AWG stranded). Torque terminal screws to 0.8 N·m (7 lb-in). Always verify that the total current draw from the power supply (e.g., 1769-PA2, -PB2, -PA4, or -B4) does not exceed the module’s rating of 20 A per module.
Compatibility & Integration
The Allen-Bradley 1769-OW16 is designed for the CompactLogix and MicroLogix 1500 platforms. It can be used as local or expansion I/O with CompactLogix controllers (e.g., 1769-L32E, L35E) and as expansion I/O with MicroLogix 1500 (1764-LSP, -LRP). It also works with 1769-ADN DeviceNet and 1769-AENTR Ethernet adapters for remote I/O scenarios. The module occupies one slot and supports firmware revision configuration via RSLogix 5000 or RSLogix 500. No additional power supply is needed when used with a MicroLogix 1500 base; otherwise, use a compatible 1769 power supply within 8 modules of the unit.
Selection Guide & Purchasing Advice
Before purchasing, verify that your controller supports 1769-series I/O modules. Confirm the required number of output points and voltage range (5–265 VAC or 5–125 VDC). For high-current loads, ensure per-point limits (2.5 A) and module total (20 A) are respected. The 1769-OW16 is available in Series A and B; both are functionally identical. UBEST Automation stocks this module with fast shipping and technical support to help with your upgrade or expansion projects.